23136665033 has 2 divisors, whose sum is σ = 23136665034. Its totient is φ = 23136665032.

The previous prime is 23136664987. The next prime is 23136665039. The reversal of 23136665033 is 33056663132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21888314809 + 1248350224 = 147947^2 + 35332^2 .

It is a cyclic number.

It is not a de Polignac number, because 23136665033 - 2²² = 23132470729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23136665039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11568332516 + 11568332517.

It is an arithmetic number, because the mean of its divisors is an integer number (11568332517).

Almost surely, 2^23136665033 is an apocalyptic number.

It is an amenable number.

23136665033 is a deficient number, since it is larger than the sum of its proper divisors (1).

23136665033 is an equidigital number, since it uses as much as digits as its factorization.

23136665033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 38.

The spelling of 23136665033 in words is "twenty-three billion, one hundred thirty-six million, six hundred sixty-five thousand, thirty-three".